<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <%@ page import="java.util.*" %>
<%
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ request.getContextPath() + "/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath%>">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<title>Insert title here</title>
</head>
<body>
<%
//通过Enumeration的hasMoreElements()方法遍历.再由nextElement()方法获得枚举的值.此时的值是form表单中所有控件的name属性的值
Enumeration<String> enu=request.getParameterNames();
%>
<%--对--%>
<% while(enu.hasMoreElements()){
	String e=(String)enu.nextElement();// E nextElement()如果此枚举对象至少还有一个可提供的元素，则返回此枚举的下一个元素
	out.println(e+":");
    String[] value=request.getParameterValues(e);
    for(String s:value) {
    out.println(s);
    }
 }

  //String e2=(String)enu.nextElement();
	//out.println(request.getParameter(e2));
%>

<%--
  if(e.startsWith("f")) {
    	out.println(e+":");
	    for(String s:value) {
	    out.println(s);
	    }
    }
    else {
    	out.println(e+":"+request.getParameter(e));
    }
}
--%>
</body>
</html>